Cisco CCVP 642-432

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Cisco Voice Over IP Sample Questions:

1. One voice packet is lost between Phone A and Phone B.
What will be the result to the listener?

A) The listener will experience a gap in the received audio stream.
B) The listener will hear the audio out of order when the lost packet is retransmitted.
C) The call is terminated.
D) The listener will hear the audio normally. Packet loss concealment will make the loss inaudible.

2. Which three are supervisory signals? (Choose three.)

A) ring
B) call waiting
C) busy
D) off hook
E) on hook

3. Refer to the exhibit. Select the recommended QoS configuration for the LAN segments of the network in the campus and branch office.

A) Configure a PQ with WRR.
Use ACLs to classify voice control traffic.
Isolate voice traffic in its own VLAN.
Configure access switches to trust traffic from IP phones.
B) Configure a PQ with WRR.
Use ACLs to classify voice traffic.
Isolate voice traffic in its own VLAN.
Configure access switches to trust traffic from IP phones.
C) Configure a PQ with voice control as highest priority.
Use ACLs to classify voice control traffic.
Isolate voice control traffic in its own VLAN .
Configure access switches to trust voice control traffic from IP phones.
D) Configure WRR with voice as highest priority.
Use ACLs to classify voice traffic.
Isolate voice traffic in its own VLAN .
Configure access switches to trust traffic from IP phones.

4. Which dial plan characteristic shows the most obvious improvement by dropping a number translation step?

A) availability
B) hierarchical design
C) scalability
D) post-dial delay

5. What is the best description of an MGCP endpoint?

A) IP phones
B) the interconnection between packet and traditional telephone networks
C) any analog telephony device (PBX, switch, etc.)
D) the gatekeepers in a VoIP network

Solutions: